package com.megan.design.principle.singleresponsibility;

/**
 * @Author: megan
 * @Data: 2018/8/19 下午7:32
 * @Description:
 */
public interface ICourseMeanager {
    /**
     * 学习
     */
    void studyCourse();
    /**
     * 退款
     */
    void refundCourse();
}
